
@mixin transition($transition) {
  -webkit-transition:$transition;
  -moz-transition:$transition;
  -ms-transition:$transition;
  transition:$transition;
}
@mixin transform-origin($origin) {
  -webkit-transform-origin:$origin;
  -moz-transform-origin:$origin;
  -ms-transform-origin:$origin;
  transform-origin:$origin;
}
@mixin scale($scale) {
  -webkit-transform:scale($scale);
  -moz-transform:scale($scale);
  -ms-transform:scale($scale);
  transform:scale($scale);
}
@mixin opacity($opacity) {
  opacity: $opacity;
  filter: alpha(opacity=$opacity*100);
}
